Brand

• FAG (15876)
• SKF (6306)
• NSK (4163)
• NTN (2360)
• INA (2353)
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Bore

• C - Cylindrical Bore (54360)
• K - 1:12 Tapered Bore (Standard for Most Types) (798)
• K3 – 1:30 Tapered Bore (2)
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Seal

• No Seal (55121)
• 2RS - Rubber Seal on Two Sides (33)
• ZZ/2Z - Steel Seal on Two Sides (6)
• RS - Rubber Seal on One Side (6)
• 2RZ - Rubber and Steel Seal (1)
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Cage Type

• Brass + Inner/Outer Centered - Brass + Inner/Outer Centered (2)
• ECPHA - PEEK Cage Outer Ring Guided (9)
• High Performance Cage L-PPS. - High Performance Cage L-PPS. (6)
• PA46 - Nylon 46 + 30% Glass Fibre (1)
• S - Steel or Standard Cage (19683)
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External Modification

• No External Modification (53469)
• Nut 3 - Locking Groove in Outerring, 3 (1)
• N - Snap Ring Groove in Outer Ring (839)
• Nut 1, Recess 1 - Locking Groove & Recess in OR (3)
• NR - Groove and Snap Ring (330)
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Radial Internal Play

• C2 Internal Play (Less than Cn) (266)
• C3M - Middle Quarters Of Normal C3 (16)
• Cn Normal Internal Play (32101)
• C3 Internal Play (Higher than Cn) (17973)
• C4 Internal Play (Higher than C3) (4021)
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Precision

• (1)
• HB1 or HB3 + VA301 - HB1 or HB3 + VA301 (1)
• HC5 + SP - HC5 + SP (17)
• P5 + VQ..... - P5 + VQ.... (9)
• P5+BL (VQ015) - P5 + BL (FAG) / VQ015 (SKF) (4)
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Lubrication

• Standard Lubrication (12)
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Heat Stabilization

• No Heat Stabilization - Temperatures up to 120 °C (54999)
• S0 - Temperatures up to 150 °C (15)
• S1 - Temperatures up to 200 °C (249)
• S2 - Temperatures up to 250 °C (22)
• S3 - Temperatures up to 300 °C (11)
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Special Treatment

• No Special Treatment (2)
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Split Inner ring / Outer ring

• Standard (2)
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